<!DOCTYPE html>
<html>
<head>
<base href="." />
<title>angular 5 + flex layout</title>
<style>
my-app {
font-size: 1.2em;
}
input[type=checkbox] {
width: 20px;
height: 20px;
cursor: pointer;
}
</style>
<!-- polyfill(s) for older browsers -->
<script src="https://unpkg.com/core-js/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.8.16?main=browser"></script>
<!--<script src="https://unpkg.com/reflect-metadata@0.1.10"></script>-->
<script src="https://unpkg.com/systemjs@0.20.18/dist/system.src.js"></script>
<script src="https://unpkg.com/web-animations-js@2.3.1"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function (err) { console.error(err); });
</script>
</head>
<body>
<my-app>
loading...
</my-app>
</body>
</html>
//our root app component
import { Component, NgModule, VERSION} from '@angular/core'
import { BrowserModule} from '@angular/platform-browser'
@Component({
selector: 'my-app',
template: `
<p>
Show form <input type=checkbox [(ngModel)]="isFormDisplayed"> <br>
Focus field:
<label>
<input type="radio" name="focusedField" [(ngModel)]="focusedField" [value]="-1"> None
</label>
<label>
<input type="radio" name="focusedField" [(ngModel)]="focusedField" [value]="0"> First name
</label>
<label>
<input type="radio" name="focusedField" [(ngModel)]="focusedField" [value]="1"> Last name
</label>
<label>
<input type="radio" name="focusedField" [(ngModel)]="focusedField"[value]="2"> Email
</label>
</p>
<p>The selected input should automatically focus every time the form is displayed.</p>
<form *ngIf="isFormDisplayed" class="mainForm">
<h2>Sign-up form</h2>
<label>
First name:
<input type="text" name="firstName" [appFocus]="focusedField == 0">
</label>
<label>
Last name:
<input type="text" name="lastName" [appFocus]="focusedField == 1">
</label>
<label>
Email:
<input type="email" name="email" [appFocus]="focusedField == 2">
</label>
<button>Submit</button>
</form>
`,
styles: [`
.mainForm {
border: solid 1px #444;
display: inline-block;
padding: 1em;
}
.mainForm label {
display: block;
margin: 0.5em 0;
}
.mainForm h2 {
font-size: 20px;
margin: 0 0 1em 0;
}
`]
})
export class AppComponent {
public isFormDisplayed: boolean = true;
public focusedField: number = -1;
}
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { AppComponent } from './app.component';
import { FocusDirective } from './focus.directive';
@NgModule({
imports: [
BrowserModule,
BrowserAnimationsModule,
FormsModule,
],
declarations: [
AppComponent,
FocusDirective,
],
providers: [
],
bootstrap: [AppComponent]
})
export class AppModule { }
(function (global) {
var angVer = '5.0.0-beta.6';
System.config({
transpiler: 'ts',
typescriptOptions: {
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": [ "es2015", "dom" ],
"module": "commonjs",
"moduleResolution": "node",
"noImplicitAny": true,
"sourceMap": true,
"suppressImplicitAnyIndexErrors": true,
"target": "es5"
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
'npm:': 'https://unpkg.com/',
'gh:': 'https://raw.githubusercontent.com/'
},
map: {
"app": "app",
"rxjs": "npm:rxjs@5.4.3",
"ts": "npm:plugin-typescript@7.1.0/lib/plugin.js",
"typescript": "npm:typescript@2.4.2/lib/typescript.js",
"@angular/core": "npm:@angular/core@" + angVer + "/bundles/core.umd.js",
"@angular/common": "npm:@angular/common@" + angVer + "/bundles/common.umd.js",
"@angular/compiler": "npm:@angular/compiler@" + angVer + "/bundles/compiler.umd.js",
"@angular/platform-browser": "npm:@angular/platform-browser@" + angVer + "/bundles/platform-browser.umd.js",
"@angular/platform-browser-dynamic": "npm:@angular/platform-browser-dynamic@" + angVer + "/bundles/platform-browser-dynamic.umd.js",
"@angular/http": "npm:@angular/http@" + angVer + "/bundles/http.umd.js",
"@angular/router": "npm:@angular/router@" + angVer + "/bundles/router.umd.js",
"@angular/forms": "npm:@angular/forms@" + angVer + "/bundles/forms.umd.js",
"@angular/animations": "npm:@angular/animations@" + angVer + "/bundles/animations.umd.js",
"@angular/animations/browser": "npm:@angular/animations@" + angVer + "/bundles/animations-browser.umd.js",
"@angular/platform-browser/animations": "npm:@angular/platform-browser@" + angVer + "/bundles/platform-browser-animations.umd.js",
"@angular/flex-layout": "npm:@angular/flex-layout@2.0.0-beta.9"
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.ts',
defaultExtension: 'ts'
},
rxjs: {
defaultExtension: 'js'
}
}
});
if (!global.noBootstrap) { bootstrap(); }
// Bootstrap the `AppModule`(skip the `app/main.ts` that normally does this)
function bootstrap() {
// Stub out `app/main.ts` so System.import('app') doesn't fail if called in the index.html
System.set(System.normalizeSync('app/main.ts'), System.newModule({ }));
// bootstrap and launch the app (equivalent to standard main.ts)
Promise.all([
System.import('@angular/platform-browser-dynamic'),
System.import('app/app.module')
])
.then(function (imports) {
var platform = imports[0];
var app = imports[1];
platform.platformBrowserDynamic().bootstrapModule(app.AppModule);
})
.catch(function(err){ console.error(err); });
}
})(this);
import {Directive, ElementRef, Input, OnChanges, OnDestroy, Optional} from '@angular/core';
@Directive({
selector: '[appFocus]',
})
export class FocusDirective implements OnChanges, OnDestroy {
@Input() appFocus: boolean = false;
@Input() focusDelay: number = 0;
constructor(private elementRef: ElementRef) {}
ngOnChanges() {
this.checkFocus();
}
private checkFocus() {
if (this.appFocus && document.activeElement !== this.elementRef.nativeElement) {
let checkFocusTimeoutHandle: number;
const focus = () => {
this.elementRef.nativeElement.focus();
};
// Even without a delay, we wait for the next JavaScript tick
// to avoid causing changes on parent components (e.g., the
// TextInput component) that have already been checked on this
// change detection cycle.
checkFocusTimeoutHandle = setTimeout(focus, this.focusDelay) as any;
}
}
}